Article ID Journal Published Year Pages File Type
1573861 Materials Science and Engineering: A 2015 9 Pages PDF
Abstract
The present study aims to investigate the twinning behavior and texture evolution during bending of a friction stir welded (FSW) AZ31 Mg alloy. Two kinds of three-point bending tests (designated as Surface test and Base test) were applied at room temperature. Strong texture-dependent twinning characteristics were revealed after bending. The largest numbers of extension twins were observed in SZ-side after Surface test and in SZ-center after Base test. The texture-dependent twinning activity was well explained by the calculated Schmid factor based on a speculated local stress state. Some extension twins were likely connected with each other and formed twin chain or twin band, and most of the neighboring twins present a high geometrical compatibility factor (larger than 0.8), implying that the local strain compatibility played an important role in the formation of connected twins.
Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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